Crimper



A fil 24, 1926. 1,667,556

W. S. LEWIS CRIMPER Original Filed Auz. 17, 1925 J'HB Zz/JAWJM PatentedApr. 24, 1 928 a u a e wrmaon s. LEWIS, or cLEvEn-nnn; onro.

mafia 7 Application filed Aa 'tist i7, r925, sjeiiaii fm. antiilexlwiiligust 1:957.

This invention relates to criinpers, and moi-e particularly to hand '0elated crin ip ers for crimping a'deform'ab e tube against anarticle-"of smaller diaineter. 6 .An object of my criiii'pers wl'ch aresin'iple in construction and which" can erated to crimp a deformablebody annula'rly against an article of smaller diameter.

Another object of my inventioiris'to provide'crimpers having a pair ofcooperating j aws whic'hare' for folding and directing a deformable bodytoward an intermediate semi-circular portion during the crimpingoperation.

These and other objects will be apparent to those skilled in the art towhich my invention relates, by reference to the accom-' panying drawingstaken in connection with the following description. v

In the drawings, Figure 1 is a plan view of a crimper in open position,embodying my invention; Fig. 2 is a similar view with the jaws in closedposition upon an article,

and Fig. 3 is aside elevation of the crimper- Referring now to thedrawings by characters of reference,

the crimper consists of a pair of elements 10 and '11,- interposedintermediate their ends, and pivotally secured together by a rivet 12.13 of the elements curve upwardly adjacent the pivotal connection andterminate in finger grips 14 at their ends.

The ends of the elements 10 and 11, opposite from the grips, providejaws 15 which are formed with crimping faces at their in: ner adjacentedges. The end portions 16 0f the crimping jaws are bent so that theywill extend in reverse planes to that of the bandle portions Thus thejaw of the handle held uppermost will lie in a plane beneath the planeof the jaw of the handle held lowermost. The curve of the handles isalso slightly different so that they will engage when the jaws areoverlapping to limit the the curve of the handles, their engagement willvary and thus the action of the jaws I can be limited in their closingmovement to provide the desired minimum crimping area.

The crimping faces of the jaws are similar in outline, and areoppositely disposed. The outer and inner portions 16 and 17 respectivelyof each crimping face are sub-. stantially straight and extendsubstantially mention is to provide 4 a p j y I be appliedaronnda'defoi'mable article, bereadily applied and opformat with guideportions The handle portions 'lustrated in Fig. 2,

closing movement of the aws. By varying a v a I The eate poitio' s18" ofthe jaw faces, intermediate the traight angularly disposed ends, an;

su ant ally semi-circular in outline. 1

at acute aiigis to each ther.

1 6 and 17 will deforih' the tithe, a s the are moved "tdward "eachtithei, and will guide the tube toward the curved portions of the jaws.The straight faces will crimp or fold, the wall of the tubelongitudinally, as the area 7 therebetween is decreased. When the tubehas been crimped by the straigl'itfaces to a diameter substantially thatofthe area between the curved faces 18, further movement of thejawstoward eaeh other will deform the crimped portion of the tubeannularly.

The angle formed by the twoface portions 17 is always tube being crimpedwill not be pinched between these faces, but will be guided toward thecurved faces 18 so that the shape of the final crimpproduced Will bedetermined by the latter. 7

One of the uses for which this invention is adapted is in connectionwith crimping tubes against a strand of hair in a permanent wavingprocess. Such tubes are he quently formed of paper and sheet foilassociated therewith, and it will be seen that a crimping action on suchtubes will crimp the tube against a strand of hair 20,.as ilso that itwill be self secured and sealed therewitln Various changes can be madein the structure described herein as an embodiment ofmy invention,without departing from the spirit of theqinvention'and the scope of theappended claims.

What I claim is 1.' A crimper comprising a pair of crossed elements,means for pivotallysecuringsaid elements together, handles at one end ofsaid elements, and crimping jaws having jaw faces of similar out-line atthe other end of said elements, the inner edges of said jaws beingopposed to'provide a crimping'surface and having substantially straightangularly disposed end portions joined by a rounded in- 110 termediateport-ion.

.2. crimper comprising a pair of crossed The ends of the jaws can beopeneddo a, v

sufliciently great-that the' eO elements, means for pivotally securingsaid elements together, handles at one end of said elements, andcrimping jaws having jaw faces of similar outline at the other endofsfid' elements, the inner edges of said jaws being opposed to provide acrimping surface and having substantially straight angularly disposedend portions joined by a rounded intermediate portion, the outer ends ofsaid jaws being bent to reverse their relation relative to that at thecentral portions of said elements.

3. l crimper comprising a pair of crossed elements, means for pivotallysecuring said elements together, handles at one end of said elements,and crimping jaws having jaw faces of similar outline at the other endof said elements, the inner edges of said jaws being opposed to providean enclosed crimping surface When in overlapping relation and havingangularly disposed end portions joined by arcuate intermediate portion,the outer ends of said jaws being bent to reverse their 4. A tool forcrimping tubular articles which comprises a'pair of pliers, the opposingfaces of which are each formed with-a crii'np-shaping section andguiding sect-ions diverging therefrom. v

5. A tool for crimping tubular articles which comprises a pair ofpliers, the opposed faces of which are each provided with anintermediate crimp-forming section and guiding sections divergingtherefrom, the opposed guiding sections forming relatively obtuse angleswith one another as the pliers are closed. j

In testimony whereof, I hereunto aliix my signature. V

WILBUR SZ-LEWISQ'

